Darwin sought to not only produce a new scientific truth, but also to put an end to polygenism, the current scientific discourse on human origins that gave tacit and at times explicit support for slavery: ‘... when the principle of evolution is generally accepted, as it surely will be before long, the dispute between the monogenists and polygenists will die a silent and unobserved death.’ (Charles Darwin, Descent of Man, p. 235)
Showing posts with label Gould. Show all posts
Showing posts with label Gould. Show all posts

Thursday, April 4, 2013

Note: Louis Agassiz "Against the Transmutation Theory" from Methods of Study in Natural History (1886)

NOTES And NOTICES
Louis Agassiz
"Against the Transmutation Theory"
from Methods of Study in Natural History. Boston: Houghton, Mifflin and Company, 1886. [Updated]

"...the resources of the Deity cannot be so meager, that, in order to create a 
 human being endowed with reason, he must change a monkey into a man..." Preface, iv.

A brief excerpt from Agassiz's Methods of Study in Natural History, which begins with his restatement of his opposition to Darwin's work, materialism in general, and to the Darwinian theories that had already, he writes, become generally accepted.  One of the last of the great 19th century naturalists to defend creationism and polygenism, which he did to the bitter end.

"The series of papers collected in this volume may be considered as a complement ... to my 'Essay on classification'....I have also wished to avail myself of this opportunity to enter my earnest protest against the transmutation theory, revived of late with so much ability, and so generally received. It is my belief that naturalists are chasing a phantom, in their search after some material gradation among created beings, by which the whole Animal Kingdom may have been derived by successive development from a single germ, or from a few germs.  It would seem, from the frequency with which this notion is revived, — ever returning upon us with hydra- headed tenacity of life, and presenting itself under a new form as soon as the preceding one has been exploded and set aside, — that it has a certain fascination for the human mind. This arises, perhaps, from the desire to explain the secret of our own existence; to have some simple and easy solution of the fact that we live....These chapters were first embodied in a course of lectures delivered at the Lowell Institute in Boston."(Preface, p. iii-vi.)
Agassiz begins the work with this note expressing his understanding of the progress of Natural History... at the very moment when Natural History and not coincidentally political economy were being swept away by new fields of knowledge: biology, ecology, sociology, economics, political science, etc.
CHAPTER I. GENERAL SKETCH OF THE EARLY PROGRESS IN NATURAL HISTORY.
 It is my intention, in this series of papers, to give the history of the progress in Natural History from the beginning, — to show how men first approached Nature, — how the facts of Natural History have been accumulated, and how these facts have been converted into science. In so doing, I shall present the methods followed in Natural History on a wider scale and with broader generalizations than if I limited myself to the study as it exists to-day. (p.1.)

Saturday, March 31, 2012

Coverage of the Morton - Gould Controversy


I know that I have not had the chance to continue writing my comments on the controversy arising around the re-measurement of Samuel Morton's collection of crania.  I intend to finish that task up this summer.  Until then, here is a collection of citations from the web related to the criticism of Gould's interpretations.  I'll include a more scholarly version later, of course.  This is just to give a flavor of the range of opinion.


Commentaries: Serious and Otherwise

Morton skulls hold controversial history
The Daily Pennsylvanian
In his research, Morton found that European skulls were larger than African skulls and he took this information to assert that Europeans were more intelligent than Africans. Stephen Gould, an evolutionary biologist, rose to counter Morton's findings....

Top 100 Stories of 2011 #59: The Mismeasure of Stephen Jay Gould
Discover Magazine
by William Saletan
Discover Magazine
From the January-February special issue; published online January 3, 2012

Scientific error, scientific fraud: why did Gould claim Morton mismeasured skulls?
Posted on March 17, 2012 by Joan Strassmann
 
Anthropologists Hurl Skulls at Stephen Jay Gould
In the example in question, nineteenth century physician Samuel George Morton, who filled skulls from his grisly ... 
deliriumliberty
 
Skullduggery? Did Stephen Gould’s Bias against Samuel Morton Prove His Point?
September 19, 2011 by Kelly Grooms
"Ironically, it seems that it was Gould’s analysis that was flawed and influenced by his biases. Where the results reported in this study falsify Gould’s hypothesis that Morton manipulated his data, they also lend support his greater hypothesis that “Unconscious or dimly perceived finagling is probably endemic in science”, as his analysis of Morton is a strong example of bias influencing results."

The mishmashing of Gould: scientific method and bias

 Gould's skulls: Is bias inevitable in science?
New Scientist
Some left response to latest Gould exposure
race/history/evolution notes
 
John Horgan equates incompatibilism with racism
Why Evolution is true
  
Mismeasure for mismeasure
Nature
474, 419 (23 June 2011) Published online 22 June 2011 
A critique of the work of Stephen Jay Gould should serve as encouragement to scrutinize the celebrated while they are still alive.

The Mismeasure of Stephen Jay Gould: Dr. Burns' Commentary
Image from the physical anthropology collection at The Burns Archive:
Graphic: John Shaw Billings, MD & Cranial Capacity Research, 1885.
 “Ascertaining Capacity of Cranial Cavity by Means of Water”
Samuel Morton collection of skulls at center of controversy
June 16, 2011
(PhysOrg.com) -- The scientific integrity of one 19th century Philadelphia scientist has been reaffirmed—but at the decided expense of a prominent late 20th century scientist who had discredited him.


Related or mentioning Morton or Gould

"Peter Wanderfalke (1 April 1806 - ca. May 1849) was a German anthropologist and anatomist, closely associated with early race theory but also an early opponent of eugenics.
In it he reviews Blumenbach's race classifications, Samuel George Morton's.... In 1845 Wanderfalke received a copy of Samuel George Morton's new work...."

Mulatto: Less than Human
Indian Country Today
2012-01-16
Julianne Jennings
Arizona State University


An example of how the Right has responded:

The Reality of Race | American Renaissance
In a 1978 Science paper, Gould (1941 – 2002), reported that the Samuel George Morton (1799-1851), “a prominent Philadelphia physician,” had mis-measured....



Friday, July 8, 2011

Comment II on “Gould versus Morton”: Morton’s Crania Collection in the Context of the Final Decades of Natural History, Part One.


At the very beginning of his great Animal Kingdom, Cuvier puts Natural History into its intellectual context, a context that framed Samuel George Morton’s work.  It was the moment of the what seemed to be the ascendance of Natural History, which seemed to be on the verge of decoding the design of nature and so the will of its supposed Designer.  In other areas, philology and geosophy were demonstrating a connection between languages, populations, histories and territories.  This was also a period of great foment for Natural Historians, a moment when geology and the recognition of fossils provoked rational and religious disputes and radical interpretations of the history of the earth and its inhabitants.  The study of human variety stood as a central concern of the time, because it was believed that the variation of humans held the key to the variation across nature.  At this time, the most popular means of understanding human behavior, and one endorsed by many scientists, were the various theories of phrenological studies.  Psychology as we know it did not exist and the explanations for deviate behavior or madness were thought to be found in changes to the body of the person. 

This is not a strange idea.  Aristotle argued in his Politics and in De Anima that the appearance of the body corresponded to the goodness of the soul and so one could see in the bodies of slaves their slavish nature, while the body of free man would be of necessity, beautiful.  This distinction between freeman and slave was a essential aspect of government.  The later pseudo-Aristotelian Secreta secretorum is another example, though in its case, the medieval author took care to note that the types of man described were never found in a pure form, and that the real purpose of the King’s knowledge of human varieties was to be able to determine who was speaking the truth.  The story of these views is fascinating and too involved for even a long digression, but well worth exploring at a later time. 


To return to the Animal Kingdom, Cuvier presents three fields of inquiry into nature.  Notably, Cuvier does not refer to science, but to his subject being instead the “Study of Nature.”  Science and the pursuit of scientific inquiry today is something very different, and so the designation science and scientist would not have the meaning it does today.  Cuvier, Morton, Audubon, Linneaus, Blumenbach, etc., were Naturalists engaged in the study of Nature.  One would have to wait a few decades before the study of life emerge along with the scientists and social scientists engaged in its study.  So Cuvier’s, and Natural History’s object was not life and the living world, but Nature and its history.  This was no same change in outlook, as has been pointed out by Francois Jacob, Wrightman, Singer, Canguilhem, etc.  That said, Cuvier’s three fields of Natural History correspond to three meanings that are given to Nature:


First, Nature refers to “qualities a being derives from birth.”

Second, Nature is used to describe “the entire mass of beings which compose the universe.”

Third, Nature is understood as “the laws which govern those beings [i. e., the “mass of beings”]. It is in this latter sense particularly that we usually personify Nature, and through respect, use its name for that of its Creator.”

The study of “these three relations” comes under the heading of “Physics [as opposed to metaphysics] or Natural Philosophy” under which we find:

A.] GENERAL PHYSICS --- which “examines abstractly each of the properties of those moveable and extended beings we call bodies.”
a1. Dynamics --- a special branch of General Physics which “considers bodies in mass, and proceeding from a very small number of experiments, determines mathematically the laws of equilibrium, and those of motion and its communication.” Dynamics is further divided into the fields of Statics, Hydrostatics, Hydrodynamics, Mechanics, Optics, etc.

B.] CHEMISTRY --- the second branch of General Physics and devoted to how “elementary molecules” act on each other, combine, and separate, and reunited and how through experimentation we can understand changes in the “various circumstances” effect these actions. Dynamics, Cuvier wrote, “is purely a science of experiment and is irreducible to calculation.”

This being said, the study of an object or “body” can be undertaken from more than one perspective, as in the case with Heat or electricity, both of which can fall under Dynamics or Chemistry “according to the point of view in which they are being considered.”

Cuvier found a “ruling method” for these various branches of General Physics and Chemistry: they all begin by “isolating bodies, reducing them to their greatest simplicity,” they study their “properties” in isolation by either “reflection or experiment, and by observing or calculating the results, and finally, in generalizing and connecting the laws of these properties, so as to form codes, and, if it were possible, to refer them to one single principle into which they might all be resolved.”

Now C.] NATURAL HISTORY, which Cuvier wrote was synonymous with with “Particular Physics,” is a very different kind of study from General Physics and Chemistry. It is less about calculation and experimentation and is instead grounded in observation. Natural History sought to apply the Laws of General Physics “to the numerous and varied beings which exist in nature, in order to explain the phenomena which each of them presents.”

Were the practitioners of Natural History really different from the scientists of today in their approach to the rational study of the world? Well, of course the answer is yes and no. Yes, because they both recognized that observation, and hence the observer, were potential sources of error that make the discovery of general laws quite difficult. No, in that there were no scientists, and certainly no biologists as we know them today during Morton’s time. Nothing resembling the infrastructure and division of labor that characterizes contemporary science existed then. Naturalists communicated through societies, letters, and occasional monographs, though as the pursuit of naturalist studies became the domain of the wealthy amateur, the number of societies and publications steadily expanded. By the middle of the 19th century, Boston, Philadelphia, and Charleston stood as the centers for the study of nature in America, and were swiftly rising to international prominence as polygenism gained respectability in circles of naturalists and their societies, associations, and private research. In the midst of this rise of what came to be known as the American School, no one denied the relationship and antagonism between the study of nature, the church, and the institutions of slavery.

Morton as an “Objectivist”
It is correctly noted by both Lewis, DeGusta, et al. and by Gould that Morton’s distinguished himself from his contemporaries by his pursuit of empirical studies on human diversity. It is probably difficult to appreciate the degree to which Morton’s polygenism broke with the “sciences” of his day, such as phrenology, but one should not overstate the possibility of a break. Morton sought to put phrenological knowledge and polygenism on an empirical footing while supporting the Biblical account of creation. Morton was not trying to overcome Natural History, nor did he inadvertently inaugurate a “paradigm shift” in Natural History. The break would soon come with the publication of Darwin’s monogenist theory of life and variation.

Morton was well acquainted with the very popular phrenologist George Combe and Combe writes the afterword to Morton’s Crania Americana. Friendship, of course, does not establish the continuity between Morton and phrenological analysis, his measurements do.  When known to him, Morton carefully notes individual biographical data that is keeping with phrenological and pathological analysis. He notes in the introduction to his Catalog of Crania that while variation was his principle interest, phrenological analysis was also important. Two of the crania in the collection are phrenologically marked and the Crania Americana contains extensive tables of phrenological measurements on each skull. The accuracy of Morton’s measurements would of course be rather inconsequential to the question of the scientific legitimacy of phrenology, however, but would perhaps further rehabilitate him in some eyes and for their own reasons. Few if any return to Morton’s collection seeking to vindicate phrenology, of course, but Morton at the time of writing the Crania Americana was doing his work comfortably within the domain of phrenology.

In the Crania Americana, Morton writes that 
 “I was from the beginning desirous to introduce into this work a brief chapter on phrenology; but conscious of my own inability to do justice to the subject, I applied to a professional friend to supply the deficiency. He engaged to do so, and commenced his task with great zeal; but ill health soon obliged him to abandon it, and to seek a distant and more genial climate. Under those circumstances, I resolved to complete the phrenological table, and omit the proposed essay altogether. Early in the present year, however, and just as my work was ready for press, Geo. Combe, Esq., the distinguished phrenologist, arrived in this country; and I seized the occasion to express my wants to that gentleman, who, with great zeal and promptness, agreed to furnish the desired essay, and actually placed the MS in my hands before he left the city.”
Morton wrote to his assistant John Phillips that “I am free to acknowledge that there is a singular harmony between the mental character of the Indian and his cranial developments, as explained by phrenology.” The quote comes from the first pages of Crania Americana. Here it is in its context:

My Dear Sir:—Having now completed a task which has cost me some years of toil and anxiety, it gives me great pleasure to record the many obligations I owe you in the prosecution of these inquiries. To your ingenuity I am almost wholly indebted for the means of obtaining the elaborate measurements appended to this work ; which, without your personal aid and untiring perseverance, would have remained in a great measure unaccomplished. It may, perhaps, be thought by some readers, that these details are unnecessarily minute, especially in the Phrenological Table; and again, others would have preferred a work conducted throughout on Phrenological principles. In this study I am yet a learner; and it appeared to me the wiser plan to present the facts unbiassed by theory, and let the reader draw his own conclusions. You and I have long admitted the fundamental principles of Phrenology, viz: That the brain is the organ of the mind, and that its different parts perform different functions : but we have been slow to acknowledge the details of Cranioscopy as taught by Dr, Gall, and supported and extended by subsequent observers. We have not, however, neglected this branch of inquiry, but have endeavored to examine it in connection with numerous facts, which can only be fully appreciated when they come to be compared with similar measurements derived from the other races of men. Yet I am free to acknowledge that there is a singular harmony between the mental character of the Indian, and his cranial developments as explained by Phrenology.
Morton to John S. Phillips, Esq., Crania Americana

A reviewer in the American Journal of Arts and Sciences also noted the continuity between Morton’s work and phrenology, actually noting that Morton’s empiricism owed its due to phrenology rather than representing a break with it. “Dr. Morton gives also measurements of particular regions of the brain as indicated by the skull; and in this portion of his work, the phrenologists alone can claim precedence of him.”

And further:

“We have adduced these proofs and authorities in support of the proposition that size [of the brain] influences power, because we conceive it to be a principle of fundamental importance in every investigation into the natural history of man, founded on the physiology of the brain; and also because in the hasty zeal of many of the opponents of phrenology, to undermine the discoveries of Dr. Gall, it has been denied with a boldness and pertinacity more allied to the spirit of contentious disputation, than to that of philosophical inquiry. Its importance in a dissertation on national crania is very apparent. One of the most singular features in the history of this continent is, that the aboriginal races, with few exceptions, have perished, or constantly receded, before the Anglo-Saxon race, and have in no instance either mingled with them as equals, or adapted their manners and civilization. These phenomena must have a cause; and can any inquiry be at once more interesting and philosophical than that which endeavors to ascertain whether the cause be connected with a difference in the brain between the native race and their conquering invaders? Farther, some few of the American families, the Auracanran, for instance, have successfully resisted the Europeans; and the question is important, whether in them the brain be in any respect superior to what it is in the tribes which have unsuccessfully resisted?

It is true that Dr. Gall’s fundamental principle, the size of the brain (other conditions being equal) is a measure of the power of mental manifestation, is directly involved in these inquiries; but we can discover no reason why it should not be put to the test of an extensive and accurate induction of facts. The unphilosophical prejudice that every proposition and fact in physiology must be neglected or opposed, because it bears on the vexed question of phrenology, has been too long indulged. The best interests of science require that it should be laid aside and we commend D. Morton, for having resolutely discarded it. He does not enter the field as a partisan, for or against Dr. Gall’s doctrines, but as a philosophical inquirer, and states candidly and fearlessly the results of his observations.”

Combe’s illustration of the phrenological measurement of the “great divisions of the faculties in the different regions of the brain.” p.16. American Journal of Science and Arts, No. 2, Vol. 38, p. 1-41
One of Morton's Phrenological Tables from Crania American

As with Cuvier, to whom Agassiz would later compare him, Morton sought to reconcile his polygenic views with the biblical accounts.  The age of the earth was an issue in the riddle of human variation, but it was also a key.  The Egyptian skulls were of interest not simply for comparisons of cranial capacity, but because Morton believed that they represented a group whose historical records date back to near the time of Creation.  As with Cuvier, Morton would turn to the Biblical accounts of creation and flood to lend support to his views whenever the crania were not sufficient to demonstrate the separate creation of the races (see Cuvier's Memoire d’Ibis, appended to The Animal Kingdom) and especially his view that all the new world tribes were one race distinct from the Mongolian race, with the exception of the “Esquimaux.”  But Morton also turned to a new and wildly popular field of Egpytology for support for his polygenist view that the races are fixed primordial forms.  One can argue with Gould over his assertion that Morton was interested in measuring intelligence, but Morton also is clear that cranial capacity has a relationship to moral judgment.  However one wants to interpret that view, it is certain that Morton believed in the fixity of species and that the races were separate species (see Morton Text I).  Here are two immediately relevant passages from Meigs essay:

The extraordinary doctrine of a uniform American type of skull originated, as is well known, with the late Dr. Samuel George Morton. He was also the most enthusiastic and persistent advocate of this scientific dogma. A variety of circumstances combined to give unusual acceptance to his views. He began his craniographic researches two years after the completion of Blumenbach's Decades Craniorum, by accumulating what was then, as far as I can learn, the largest and most diversified collection of human skulls in the world.  These he long and attentively studied, until he acquired the right to speak authoritatively concerning them. No one was in possession of so many native American crania as he, and so little interest was manifested in human craniography at that time, that but few if any persons ever examined his collection with the object of testing the validity of his conclusions. Moreover, prior to the publication of Crania Americana Dr. Morton had already acquired the double reputation of a naturalist and a physician, and for several years before his death occupied the most prominent, official position in the Academy of Natural Sciences. In view of these facts, it is not at all surprising that his opinions, instead of being controverted, as they now are, found ready adherents ; and that one of the most eminent of living naturalists should have employed them, as well established facts, in his attempt "to show that the boundaries, within which the different natural combinations of animals are known to be circumscribed upon the surface of our earth, coincide with the natural range of distinct types of man.''["Sketch of the Natural Provinces of the Animal World and their relation to the different Types of Man." by Louis Agassiz. See Types of Mankind, p. Iviii.]

Dr. Morton's last contribution (“Physical Type of the American Indians," in Schoolcraft's Information respecting the History, Condition and Prospects of the Indian Tribes of the United States. Part 2, p. 315. ) to craniographical science, which was published after his death, shows conclusively that his views respecting the homogeneity of the aboriginal American races had undergone no change whatever. In this paper he still maintains the doctrine of a uniform, cranial type for these races, with the same arguments and in language almost identical with that which he employed in his Inquiry ten years before.  I make these references to his published opinions to show that Dr. Morton perseveringly inculcated this doctrine from the inception to the very close of his ethnological studies, comprising a period of about twenty-one years; that he was thoroughly convinced of its truthfulness, and regarded it as one of the best established and most readily demonstrable of all the conclusions at which he had arrived after a long and unwearied study of his cranial collection. 
Meigs, J. Aitken, M.D.  1866.  "Observations upon the Cranial Forms of the American Aborigines, based upon Specimens contained in the Collection of the Academy of Natural Sciences of Philadelphia." Proceedings of the Academy of Natural Sciences of Philadelphia, p. 198- 212

Meigis, whose work I will post as another document in the near future, notes the contemporary critiques of Morton’s views, critiques that indicate that Morton’s views were already being critiqued on the basis of his data and his conclusions, especially on the uniqueness and uniformity of the Native American crania --- it was contemporaneous with Emerson’s American Scholar proclamation of American exceptionalism, by the way. 

Just as important, not all polygenists supported the Biblical account.  For many the biblical account had already been overturned by the fossil record and by Lyell’s gradualism.  Cuvier’s catastrophe theory was both under assault and being constantly modified.  Those who clung to the Biblical accounts were more often monogenists who saw the “unity of humans” in terms of the Biblical stories of creation and deluge.  Their monogenist views were often, though not always allied with the abolitionism of the churches.   The unity of humans was a powerful anti-slavery argument, obviously.  The notable exceptions to the linking of monogenism and abolitionism included Morton’s primary antagonist, the monogenist naturalist and Lutheran minister John Bachman of Charleston .  Bachman was a scientific rival, not a religious one.  He was a close friend and co-author with James Audubon.  His wife, Maria Bachman, contributed her considerable talents to Audobon’s paintings. ( http://until-darwin.blogspot.com/2010/12/audubons-birds-and-some-often.html ; http://until-darwin.blogspot.com/2010/12/brief-additional-note-to-audubons-birds.html ; http://until-darwin.blogspot.com/2011/02/maria-martin-bachmans-sketches-and.html )

Bachman was noted for his innovations and social reforms during the decades leading up to emancipation and Civil War.  He baptized free Blacks and allowed them into the congregation.  The congregation remained segregated, as was its school, but by 1860, free Blacks constituted 35 percent of the congregation.  Bachman trained and ordained the first three African-American Lutheran ministers, one of whom would become president of Wiberforce University and another the Chief Justice of the Supreme Court of Liberia.  Bachman opposed succession, but he supported what he termed “the institutions of South Carolina.”  He recited the opening prayer of the secessionist session of the South Carolina legislature.  His essay “The Duty of the Planter to his Family, to Society, and his Country” deplored profiteering and warned planters and manufacturers that “If you join the extortioners in high prices, you will effect our subjugation by your avarice, and bring destruction on our beloved Southland.  We are all engaged in the same noble, patriotic, and Christian cause.”  He declared the important role of Natural History in supplying the knowledge of nature and agriculture that would be essential for a Confederate victory and pledge to put his knowledge at the disposal of the Rebel cause.  In the 1860 census, John and Maria Bachman are recorded as owning five slaves. ( "A Short Biography of John Bachman" http://until-darwin.blogspot.com/2011/07/short-biography-of-john-bachman-1790.html)

Naturalists such as Josiah Nott ( http://pratt.academia.edu/BRicardoBrown/Papers/250266/Josiah_Nott_2007_ ) used the polygenic theory to support both the institutions of Southern slavery and to further the freeing of inquiry from the influence of religious dogma.  Morton was generally quite reluctant to even admit that his views might contradict the authority of religion, but his acolytes Josiah Nott and George Gliddon were not so shy about their ideological commitments and it is Gliddon to whom Morton dedicated his Crania aegyptiaca.  After all, Gliddon had supplied many of the skulls either directly or indirectly through intermediaries and grave robbers while he and later his nephew served as American diplomats in Egypt.

So, Morton’s social milieu of the middle 19th Century was complex, and his reason's for collecting his data nd his interpretations of that data, like those of his rival Bachman take note of these complexities.  Why else, indeed, would he have undertaken the collection and study of crania if it were not that the understanding of human variety had become a pressing problem of society and the rational administration of its populations? 

While there is a continuity between Morton’s work and phrenological studies, it the connection would become strained over time as Morton moved away from the needing the umbrella of authority that phrenology then offered.  And again, as noted in the previous comment, there are also deep fractures and breaks between Morton’s work and later work in criminal anthropology, eugenics, and intelligence testing.  Gould overstates the degree of continuity between these, but the attempt to revise Morton as an objectivist also glosses over the degree to which the questions Morton sought the answer were asked within his specific social and intellectual milieu. It is a bit dodgy to maintain that the new study proves that Morton had NO interested in differences in intelligence between races of humans that he thought represented separate primordial forms. He certainly believed that the capacity of the cranium was correlated with mental and moral endowments as well as an indicator of the creation of humans as separate primordial forms. On the other hand, he certainly did not understand intelligence as we might today, and intelligence testing in relation to biological determinism in the late 2oth century was Gould's concern.

That Morton’s measurements were accurate is important, but so too is understanding the manner in which the collection was created and the purposes it was intended to serve.  The discussion of which will be the subject of a later posting.


Previous Posts:
Comment I: The New York Times Article and Editorial. Comment I on "Morton vs Gould"

Document I:  The "Gould versus Morton" Debate -- Text I: Samuel George Morton’s Description of his Collection of Crania

Document II:  The "Gould versus Morton" Debate -- Text II: Some Passages from the MisMeasure of Man, 2nd edition on Morton, the Value and relation of Science to Society, Agassiz, and John Collins

References
Anonymous.  c1840.  Review of Morton's Crania Americana.  American Journal of Science and Arts, No. 2, Vol. 38, p. 1-41

John Bachman
http://pratt.academia.edu/BRicardoBrown/Papers/250267/John_Bachman_2010_
http://until-darwin.blogspot.com/2011/07/short-biography-of-john-bachman-1790.html

http://until-darwin.blogspot.com/2010/12/audubons-birds-and-some-often.html

http://until-darwin.blogspot.com/2010/12/brief-additional-note-to-audubons-birds.html

http://until-darwin.blogspot.com/2011/02/maria-martin-bachmans-sketches-and.html

Josiah Nott
http://pratt.academia.edu/BRicardoBrown/Papers/250266/Josiah_Nott_2007_


Cuvier, Baron.  The Animal Kingdom, arranged in conformity with its organization.  New York: G. & C. & H. Carvill, 1832.

Meigis, J. Aitken, M. D. 1866.  Observations upon the Cranial Forms of the American Aborigines, based upon Specimens contained in the Collection of the Academy of Natural Sciences of Philadelphia. Proceedings of the Academy of Natural Sciences of Philadelphia, p. 198- 212.

At a later time I'll compile a more complete bibliography, but it did not seem appropriate for a series of blog posts at this time.  I also need the time to chase down the links to the appropriate digital copies of some of the works.

 [Updated September 28, 2019]

Saturday, June 25, 2011

The New York Times Article and Editorial. Comment I on "Morton vs Gould"


In the study of life, all knowledge is provisional. Just as it is the establishment of laws fundamental to the sciences, so too is skepticism equally important to the sciences --- and those which aspire to be included in the sciences--- and the long struggle to free scientific rationality from dogma and ideology itself demonstrates that conclusions are subject to change and reinterpretation. This is in fact what the authors want to do with the essay under review: to alter our interpretation. To the extent that they succeed is in fact this same aspect of scientific rationality that both makes their work open to use in support of dogma and ideology, and makes it persuasive as well. Similarly, if we take the example of historical sociology, we find our understanding of the the past is provisional and interpretations change as well as the disciplining and division of labor in society change over time.

For example, would today often read a text on the urban poor like that of Morton’s contemporary, Henry Mayhew, who for his time would be considered a reformist journalist and advocate for the poor:

“As animals have their habit, so there is a large class of mankind which single cleverness is that of representing themselves as justly and naturally dependent on the assistance of others, who look paupers from their birth, who seek givers and forsake those who have given as naturally as a tree sends its roots into new soil and deserts the exhausted. It is the office of reason --- reason improved by experience --- to teach us not to waste our own interest and our resources on beings that will be content to live on our bounty, and will never return a moral profit to our charitable industry. The great opportunities or the mighty powers that heaven may have given us, it never meant to be lavished on mere human animals who eat, drink, and sleep, and whose only instinct is to find out a new caterer when the old one is exhausted.” (from The London Labour and the London Poor. New York: Penguin Classics, 1985:509.)
But of course, one must acknowledge that neither the search for laws nor radical skepticism have prevented many from asserting that their view of history is the one true history. Sextus Empiricus’ radical skepticism was geared towards preventing the acceptance of dogma as fact.

The PLoS Biology essay on Stephen Jay Gould and Samuel George Morton [Lewis JE, DeGusta D, Meyer MR, Monge JM, Mann AE, et al. (2011) The Mismeasure of Science: Stephen Jay Gould versus Samuel George Morton on Skulls and Bias. PLoS Biol 9(6): e1001071. doi:10.1371/journal.pbio.1001071 ]

is to be understood from a number of perspectives, and this certainly leaves it open to narrow ideological readings. The range of these readings express the various commitments of its many readers and commentators.

The first place to turn is the article in the New York Times that announced the Lewis, DeGusta article.
“Scientists Measure the Accuracy of a Racism Claim”  by Nicholas Wade

The New York Times Article

The headline of the article, which is not the responsibility of the Wade, is of course somewhat sensational. Gould and Lewis, DeGusta, et al. agree that Morton held views that today would be considered racists, though racialist is a better term. Lewis, DeGusta et al. are not attempting to dispute Morton’s racialism, but whether that scientific ideology caused Morton to inaccurately report the measurements of the crania in his collection. This is a very narrow question, which Gould believed to be current based upon his examination of Morton’s results, but that the authors of the new article believe to be not the case.

Much of the the Wade/NYTimes article is a largely accurate characterization and summary of Lewis, DeGusta, et al., except for a sentence that the new study “does little to burnish Dr. Gould’s reputation as a scholar.” In fact, Gould reputation as a scholar does not and never did rest on his essay and later chapter on Morton’s craniological studies. Much like his hero, Charles Darwin, Gould’s work as a naturalist was never divorced from his other work. Just as Darwin’s work was partly motivated by his anti-slavery convictions, so too was Gould compelled to use science as a basis for an intervention into the large political questions of his day. Gould was also a scientist who intervened into the history of science and its popular understanding, particularly in the arena of the public understanding and misunderstanding of Darwin’s work. The work The Mismeasure of Man falls into this group of popular political writings. It is a book about biological determinism and the then current political/popular debates over race as an explanation for intelligence. And popularizing and popularity are always something that one’s detractors will point towards as a sign of lack of scientific integrity. It is useful to compare Mismeasure with his more academic Ontegeny and Phylogeny (1978), wherein Morton is not mentioned, and his Structure of Evolutionary Thought, where again Morton does not appear. This can not help be raise a question concerning the centrality of the chapter on Morton to Gould’s body of work. We will save such notices and discussions until a later posting in this series.

Wade’s summary of Lewis, DeGusta, et al.:

A. “Morton did not manipulate his data to support his preconceptions.”

B. The study is based on remeasuring half of the human crania in Morton’s collection (his collection contained examples of the crania of many non-human species as well).

C. Gould accuses Morton of omitting “subgroups to manipulate a groups overall score.... Gould himself also omitted subgroups in his own analysis and made various errors in his calculations. When these are corrected, the differences between the racial categories recognized by Morton are as he assigned them.” No mention is made in the Wade article of the conclusions that Morton drew from these results, i.e., that race could ve used to classify humans into fixed categories that result from different species or “Primordial organic form[s]” or each from a separate “primitive variety.” [Proceedings of the Academy of Natural Sciences of Philadelphia for September and October, 1849. See also Morton’s description of race from his Catalogue of Skulls of Man and Inferior Animals in the Collection of Samuel George Morton [http://until-darwin.blogspot.com/2011/06/gould-versus-morton-debate-text-i.html ]

To be sure, Lewis, DeGusta, et all. are clear that:

“In reevaluating Morton and Gould, we do not dispute that racist views were unfortunately common in 19th-century science [PLoS FN6] or that bias has inappropriately influenced research in some cases [PLoS FN16]. Furthermore, studies have demonstrated that modern human variation is generally continuous, rather than discrete or “racial,” and that most variation in modern humans is within, rather than between, populations [PLoS FN11],[PLoS FN17]. In particular, cranial capacity variation in human populations appears to be largely a function of climate, so, for example, the full range of average capacities is seen in Native American groups, as they historically occupied the full range of latitudes [PLoS FN18]. It is thus with substantial reluctance that we use various racial labels, but it is impossible to discuss Morton and Gould's work without using the terms they employed (Lewis, DeGusta, et al., 2011:2)

Regarding the final statement it is no doubt true that the collection of data and the analysis and interpretation of that data are intimately connected. So much so that the “racial labels” can not be avoided, though it is good to point out that Gould and Morton did not attach the same meaning and degree of fixity to those labels. The dispute then is over the accuracy of Morton’s measurements and the fairness of Gould characterizations that he based on his own analysis. The errors in Gould’s analysis are not shown in the article to be the result of conscious error or deliberate manipulation. Gould also did not accuse Morton of conscious error or deliberate manipulation.

D. “‘Ironically, Gould’s own analysis of Morton is likely the stronger example of a bias influencing results.’” A stronger example, but not a demonstration that bias does not influence scientific work, but rather an affirmation that scientific work can be biased, which might be he most ironic aspect of the so-called debate.

The author’s paragraph on Morton’s interpretation of his data was not mentioned in the Times article. No doubt, this was done in order to set up the inevitable journalistic trope of “two sides to every story.” We are presented with an ambiguous statement by Lewis regarding Gould’s integrity, but as it is obviously out of context, it is simply ambiguous.

The real contest is prefaced by the mention of an article by John S. Michael, who as an undergraduate at the University of Pennsylvania “Concluded that Morton’s results were ‘reasonably accurate’ with no clear sign of manipulation.” The reason this is mentioned is because it will be referred to in the concluding ‘exchange” between Philip Kitcher and Ralph L Holloway, the former having defended Gould in the matter of the Mitchel article, with the later being one of the authors of the study. The dispute is presented as being about the appropriateness of “prefer[ring] the measurements of an undergraduate to those of a professional paleontologist.” But as we know and as Gould himself states in the Mismeasure of Man and Lewis, DeGusta, et al. attest as well, Gould did not do any measurements of the skulls himself.

The mention of Michael’s work leads to the last question on “the new finding’s bearing on Dr. Gould’s reputation. Kitcher gives the first response: “Steve does not come off as a rogue but as someone who makes mistakes.”

The more biting, and volatile sentiment is left for last, from the co-author Ralph L Holloway
“an expert on human evolution at Columbia and a co-author of the new study, was less willing to give Dr. Gould benefit of the doubt. 'I just didn’t trust Gould,' he said. 'I had the feeling that his ideological stance was supreme. When the 1996 version of ‘The Mismeasure of Man’ came and he never even bothered to mention Michael’s study, I just felt he was a charlatan.'”
Regarding the rather extreme accusation that Gould was a charlatan, only time will tell but there seems to be little evidence for such a claim. Certainly, the idea that Gould was deliberately fraudulent in his work would demand a good deal more proof than a few computation errors, no matter what implications he took from the results of those errors. Certainly the same could be said for Morton. Or is it that Gould’s errors were errors of computation, while Morton’s were errors of interpretation?



Gould seems to force the chapter on Morton into a work about biological determinism. It and the other early chapters of Mismeasure are presented as the historical backdrop for the then current debate on intelligence testing and social welfare policy. The focus of the book is not Gould’s exposure of any errors by Morton. Morton simply provides one example of many  naturalists who subscribed to polygenism and who believed that race explained difference.  Perhaps this is the basis for the erroneous assertion that Gould’s discussion of Morton is a central aspect of the Mismeasure of Man. It was not and the value of Gould's work does not rise and fall on is attempt to replicate Morton's analysis.  Gould did his analysis of Morton’s data intermittently over the course of several weeks.  He really seems to have spent very little time on it.  And perhaps most importantly, Gould relied for the most part on Stanton’s wonderful book The Leopard’s Spots for his discussion of Morton and polygenism. Likewise, Lewis, DeGusta, et al. also use Stanton’s book as their authority, though Stanton's work would not provide them much support in terms his critique of Morton's interpretations of his measurements and his polygenism.

Gould’s larger error was not in seeing science as embedded in society, nor in missing his own computational errors, but in his attempt to establish a continuity between phrenology, Morton’s craniology, Lombroso’s criminal anthropology, and later theories of intelligence and the ranking of groups by intelligence testing. All of these he saw as examples of a biological determinism that could be found in both scientific research and in the social policies that arose from that scientific data. However, there are significant differences between these “wretched knowledges” (Neugebauer) and scientific ideologies (Canguilhem). Though Morton and the phrenologist Combes were good friends, Morton moved significantly away from phrenology by examining the capacity of the crania rather than its external characteristics. Morton’s work was undertaken before the transition from Natural History to Biology, and so Morton’s determinism is not really biological as it is based on the fixity of species. Lombroso’s theory of degeneration is a product of the post-Darwinian period and not directly derived from Buffon, for example, and owed little to Morton. Lombroso’s socialism also has little resemblance to Gould’s. 
 
Measurement does provide some continuity, but one would expect measurement of some kind in any rational investigation. In each era, measurements are being taken, but of different things and for different reasons. In terms of the study of human variation, Gould's discussion does not go into detail about the social context as much as he more pursues the history of ideas, a pursuit that was common when Mismeasure of Man was published some thirty years ago.

As for responding to critics, Gould states in the revised 2nd edition that in terms of negative reviews:

“I firmly believe in not answering negative reviews, for nothing can so disorient an attacker as silence. But this was a bit too much [re: a negative review in The Public Interest that the first edition was, as he in part summarized as “politically motivated crap”], so I canvassed among friends. Both Noam Chomsky and Salvador Luria, great scholar and humanists, said essentially the same thing: never reply unless your attacker has floated a demonstrably false argument, which, if unanswered, might develop a ‘life of its own.’” (Mismeasure, 2nd edition, p.45).

On his own possible biases, Gould wrote that:
“We must identify preferences in order to constrain their influence on our work, but we do not go astray when we use such preferences to decide what subjects we wish to pursue. Life is short, and potential studies infinite. We have a much better chance of accomplishing something significant when we follow our passionate interests and work in areas of deepest personal meaning. Of course such a strategy increases dangers of prejudice, but the gain in dedication can overbalance any such worry, especially if we remain equally committed to the overarching general goal of fairness, and fiercely committed to constant vigilance and scrutiny of our personal biases” (Mismeasure, 2nd, p.37).
In the editorial the next day, the Times concluded that:
“The team expressed admiration for Dr. Gould’s body of work in staunch opposition to racism, but, in this case, it accused him of various errors and manipulations that supported his own hypothesis. “Ironically, Gould’s own analysis of Morton is likely the stronger example of a bias influencing results,” the team said. We wish Dr. Gould were here to defend himself. Right now it looks as though he proved his point, just not as he intended.”
In the caption for the photo accompanying the article above Wade's, neuro-scientist Nora D. Volkow, the Director of the National Institute on Drug Abuse is quoted as saying “Science and politics are intertwined.”

_________________

Canguilhem, Georges.  1988.  Ideology and Rationality in the History of the Life Sciences.  Cambridge: MIT Press.

Gould, Stephen Jay. The Mismeasure of Man, 2nd Revised and expanded edition. 1996 [first edition 1981].

Lewis JE, DeGusta D, Meyer MR, Monge JM, Mann AE, et al. (2011) The Mismeasure of Science: Stephen Jay Gould versus Samuel George Morton on Skulls and Bias. PLoS Biol 9(6): e1001071. doi:10.1371/journal.pbio.1001071 ]
http://www.plosbiology.org/article/info%3Adoi%2F10.1371%2Fjournal.pbio.1001071

Mayhew, Henry. The London Labour and the London Poor. New York: Penguin Classics, 1985:509.

New York Times. “Bias and the Beholder.” Wednesday, June 15, 2011.
 https://www.nytimes.com/2011/06/15/opinion/15wed4.html

New York Times. Profiles in Science: Nora D. Volkow, A General in the Drug War. New York Times, Tuesday, June 14, 2011, D1-D4.
http://www.nytimes.com/2011/06/14/science/14volkow.html?scp=2&sq=nora%20volkow&st=cse

Neugebauer, Otto.  1983.  Astronomy and History: Selected Essays.  New York: Springer-Verlag.

Stanton W (1960) The Leopard's Spots. Chicago: The University of Chicago Press.

Wade, Nichlas. “Scientists Measure the Accuracy of a Racism Claim” New York Times, Tuesday, June 14, 2011. http://www.nytimes.com/2011/06/14/science/14skull.html?_r=1&src=me

The Geography of Human Variety according to Blumenbach

Thursday, June 16, 2011

The "Gould versus Morton" Debate -- Text II: Some Passages from the MisMeasure of Man, 2nd edition on Morton, the Value and relation of Science to Society, Agassiz, and John Collins


This is a set of passages from Stephan Jay Gould's The Mismeasure of Man, 2nd edition.  New York: W. W. Norton, 1996.  It is t is a companion post to the text from Samuel G. Morton.


On The Relations of Science and Society
“Yet the history of many scientific subjects is virtually free from such constraints of fact for two major reasons. First, some topics are invested with enormous social importance but blessed with very little reliable information. When the ratio of data to social impact is so low, a history of scientific attitudes may be little more than an oblique record of social change. The history of scientific views on race, for example, serves as a mirror of social movements (Provine, 1973). This mirror reflects in good times and bad, in periods of belief in equality and in eras of rampant racism. The death knell of the old eugenics in America was sounded more by Hitler’s particular use of once-favored arguments for sterilization and racial purification than by advances in genetic knowledge.
Second, many questions are formulated by scientists in such a restricted way that any legitimate answer can only validate a social preference. Much of the debate on racial differences in mental worth, for example, proceed upon the assumption that intelligence is a thing in the head. Until this notion was swept aside, no amount of data could dislodge a strong Western tradition of ordering related items into a progressive chain of being.
Science cannot escape its curious dialectic. Embedded in surrounding culture, it can, nonetheless, be a powerful agent for questioning and even overturning the assumptions that nurture it. Science can provide information to reduce the ration of data to social importance. Scientists can struggle to identify the cultural assumptions of their trade and to ask how answers might be formulated under different assertions. Scientists can propose creative theories that force startled colleagues to confront unquestioned procedures. But science’s potential as an instrument for identifying the cultural constraints upon it cannot be fully realized until scientists give up the twin myths of objectivity and inexorable march toward truth. One must, indeed, locate the beam in one’s own eye before interpreting correctly the pervasive motes in everybody else’s. The beams can then become facilitators, rather than impediments.”
Mismeasure of Man, 2nd edition, 54-55.

Gould on Agassiz and Morton:
“Agassiz speculated freely and at length, but he amassed no data to support his polygenic theory. Morton, a Philadelphia patrician with two medical degrees --- one from fashionable Edinburgh --- provided the ‘facts’ that won worldwide respect for the ‘American School’ of polygeny.... Yet Morton gathered skulls neither for the dilettante’s motive of abstract interest nor the taxonomist’s zeal for complete representation. He had a hypothesis to test: that ranking of races could be established objectively by physical characteristics of the brain, particularly by its size.
Mismeasure of Man, 2nd edition, p. 83.

Morton’s work and its later use:
“Morton published three major works on the sizes of human skulls --- his lavish, beautifully illustrated volume on American Indians, the Crania Americana of 1839; his studies of skulls from the Egyptian tombs, the Crania Egyptiaca of 1844; and the epitome of his collection in 1849. Each contained a table, summarizing his results on average skull volumes arranged by race.... [The tables] represent the major contribution of American polygeny to debates about racial ranking. They outlived the theory of separate creations and were reprinted during the nineteenth century as irrefutable, ‘hard’ data on the mental worth of human races.”
Mismeasure of Man, 2nd edition, p. 85.

Gould’s brief against Morton’s work:
During the summer of 1977 I spent several weeks reanalyzing Morton’s data. (Morton, the self-styled objectivist, published all his raw information. We can infer with little doubt how he moved from raw measurements to summary tables.) In short, and to put it bluntly, Morton’s summaries are a patchwork of fudging and finagling in the clear interest of controlling a priori convictions. Yet--- and this is the most intriguing aspect of the case --- I find no evidence of conscious fraud; indeed, had Morton been a conscious fudger, he would not have published his data so openly.
Conscious fraud is probably rare in science. It is also not very interesting, for it tells us nothing about the nature of scientific activity. Liars, if discovered, are excommunicated; scientists declare that their profession has properly policed itself, and they return to work, mythology unimpaired, and objectively vindicated. The prevalence of Unconscious finagling, on the other hand, suggests a general conclusion about the context of science. For if scientists can be honestly self-deluded to Morton’s extent, then prior prejudice may be found anywhere, even in the basic of measuring bones and toting sums.
Mismeasure of Man, 2nd edition, p. 86.

Gould on the quality of the illustrations in Morton’s work:
“The lithographs of this and the next figure were done by John Collins, a great scientific artist unfortunately unrecognized today.”  
Mismeasure of Man, 2nd edition, p. 90.

The "Gould versus Morton" Debate -- Text I: Samuel George Morton’s Description of his Collection of Crania



As I go over the materials for a post about the recent article PLoS Biology article "The Mismeasure of Science: Stephen Jay Gould versus Samuel George Morton on Skulls and Bias." by Lewis, DeGusta, et al., I thought it might be a good idea to go ahead and post some relevant extracts from Morton and Gould.

Below is Morton's description of his collection, presented at the Academy of Natural Sciences and included as the Introduction to Catalogue of Skulls of Man and Inferior Animals in the Collection of Samuel George Morton, third edition. Philadelphia: Merrihew & Thompson, 1849, p. i-x.

This is the text in full with accompanying tables. Click on the images to see the table in full size.


INTRODUCTION

The primary motive in making the following collection has been to compare the characters of the cranium in different races of men, and these again with the skulls of the interior animals, not only in reference to their exterior form, but also to internal capacity as indicative of the size of the brain.”

Besides these strictly Ethnographic objects, some others of a different and subordinate kind have been had in view; such as pathological conditions of the skull from diseases and from wounds; remarkable developments illustrative of the principles of Phrenology, and preternatural growths of every description.

The Indian crania contained in this series have received my especial attention, both in respect to their number and authenticity, for they have been collected with great care by gentlemen whose names are associated with them. In every instance where a doubt is entertained as to the tribe or nation to which the skull belonged, it is expressed by a mark of interrogation; and where no clue exists for such information, the deficiency is noted accordingly. I have sometimes had the skulls of both Europeans and Africans sent to me by mistake for those of Indians: that these should occasionally be mingled in the same cemeteries is readily understood; but a practised eye can separate them without difficulty.

Large as this collection already is, a glance at the Ethnological Table will show that it is very deficient in some divisions of the human family. For example, it contains no skulls of the Eskimaux, Fuegians, Californians or Brazilians. The distorted heads of the Oregon tribes are also but partially represented, while the long-headed people of the Lake of Titicaca, in Bolivia, are altogether wanting. Skulls also of the great divisions of the Caucasian and Mongolian tribes of Northern Asia and China, are among the especial desiderata of this collection.

The following analysis exhibits an Ethnographic view of the materials embraced in the entire series.

The letters F. A. express the facial angle, and I. C. refer to the internal capacity of the cranium as obtained by the process invented by my friend Mr. J. S. Phillips, and described in my Crania Americana, p. 253, merely substituting leaden shot, one-eighth of an inch in diameter, in place of the white mustard-seed originally used. I thus obtain the absolute capacity of the cranium, or bulk of the brain, in cubic inches; and the results are annexed in all those instances in which I have had leisure to put this revised mode of measurement in practice. I have restricted it, at least for the purpose of my inferential conclusions, to the crania of persons of sixteen years of age and upwards, at which period the brain is believed to possess the adult size. Under this age, the capacity-measurement has only been resorted to for the purpose of collateral comparison.

All the measurements in this Catalogue, both of the facial angle and internal capacity, have been made with my own hands. I at one time employed a person to aid me in these elaborate and fatiguing details; but having detected some errors in his measurements, I have been at the pains to revise all that part of the series that had not been previously measured by myself. I can now, therefore, vouch for the accuracy of these multitudinous data, which I cannot but regard as a novel and important contribution to Ethnological science.

It is necessary to add, that the measurements originally published in the Crania Americana were made with seeds, which will explain the discrepancy between the numbers observable in that work and this catalogue. The measurements of the Crania Egyptiaca having been originally made with shot, require no revision: nor can I avoid expressing my satisfaction at the singular accuracy of this method, since a skull of an hundred cubic inches, if measured any number of times with reasonable care, will not vary a single cubic inch.


I am now engaged in a memoir which will embrace the detailed conclusions that result from these data; and meanwhile I submit the following tabular view of the prominent facts.

In this table the measurements of children, idiots and mixed races are omitted, excepting only in the instance of the Fellahs of Egypt, who, however, are a blended stock of two Caucasian nations,—the true Egyptian and the intrusive Arab, in which the characteristics of the former greatly predominate.


“No mean has been taken of the Caucasian race* collectively. Because of the very great preponderance of Hindu, Egyptian and Fellah skulls over those of the Germanic, Pelasgic and Celtic families. Nor could any just collective comparison be instituted between the Caucasian and Negro groups in such a table, unless the small-brained people of the latter division (Hottentots, Bushmen and Australians) were proportionate in number to the Hindoos, Egyptians and Fellahs of the other group. Such a computation, were it practicable, would probably reduce the Caucasian average to about 87 cubic inches, and the Negro to 78 at most, perhaps even to 75, and thus confirmatively establish the difference of at least nine cubic inches between the mean of the two races.*[**]


*“It is necessary to explain what is here meant by the word race. Further researches into Ethnographic affinities will probably demonstrate that what are now termed the five races of men, would be more appropriately called groups; that each of these groups is again divisible into a greater or smaller number of primary races, each of which has expanded from an aboriginal nucleus or centre. Thus I conceive that there were several centres for the American group of races, of which the highest in the scale are the Toltecan nations, the lowest the Fuegians. Nor does this view conflict with the general principle, that all these nations and tribes have had, as I have elsewhere expressed it, a common origin; inasmuch as by this term is only meant an indigenous relation to the country they inhabit, and that collective identity of physical traits, mental and moral endowments, language, &c., which characterizes all the American races. The same remarks are applicable to all the other human races; but in the present infnat state of Ethnographic science, the designation of these centres is a task of equal delicacy and difficulty. I may here observe, that whenever I have ventured an opion on this question, it has been in favor of the doctrine of primitive diversities among men, ---an original adaptation of the several races to those varied circumstances of climate and locality, which, while congenial to the one are destructive to the other; and subsequent investigations have confirmed me in these views. See Crania Americana, p. 3; Crania Egyptiaca, p. 37; Distinctive Characteristics of the Aboriginal Race of America, p. 36; Silliman’s American Journal of Science and the Arts, 1847; and my letter to J. R. Bartlett, Esq., in Vol. 2 of the Transactions of the Ethnological Society of New York.

*[**] From the Proceedings of the Academy of Natural Sciences of Philadelphia for September and October, 1849.

[Updated September 28, 2019]